Fig. 4From: Two superoxide dismutases from TnOtchr are involved in detoxification of reactive oxygen species induced by chromateActivity staining of the purified ChrC (a) or ChrF (b) proteins electrophoresed on 10Â % nondenatured polyacrylamide gel. Lane 1, enzymatic reaction in absence of inhibitor; lane 2, enzyme incubated with 10Â mM KCN; lane 3, enzyme incubated with 10Â mM H2O2; lane 4, enzyme incubated with 5Â mM NaN3 Back to article page